"Wijnand Nijs" <w.n### [at] alf4alldemonnl> wrote in message 
news:495cdbc8$1@news.povray.org...
> First the best wishes for 2009.
>
> Is it with mesh2 objects possible to give the out-site en the in-site 
> different textures? What can I do with the texture_list?

Yes, you can give the inside and outside of a POV-Ray object different 
textures. By default they're the same, but you can use the 
'interior_texture'  object modifier to specify a different texture for the 
interior surfaces. Your mesh2 will need to have consistently defined 
normals.

The texture_list enables you to specify different textures for use in the 
mesh2 object. Each texture gets an index that can be used in the 
face_indices section to assign a different texture to the different faces in 
the mesh2 object, or optionally different textures for each of the vertices 
of each face. From the help: "To specify a texture for an individual mesh 
triangle, specify a single integer texture index following the face-index 
vector for that triangle. To specify three textures for vertex-texture 
interpolation, specify three integer texture indices (separated by commas) 
following the face-index vector for that triangle."

I don't know how the two things work together if both are specified on the 
same mesh2 object (I've never tried that). I would guess that you get a 
single interior texture and that it would use the texture_list textures for 
the outside.

Regards,
Chris B.

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